Obsolete PIO Core - Remove multiple PIO Cores from a system

Every project seems to trigger the message, even a new, unmodified project: VSCode -> PIO Home -> New Project -> click Build

Also, from the PIO CLI window in VSCode:

$ pio run -h **************************************************************************************************************************************************************************************************************
Obsolete PIO Core v5.1.0 is used (previous was 5.1.1a3)
Please remove multiple PIO Cores from a system:
Redirecting...


Also tried a verbose build on a new project, but I’m not sure it illuminated anything new:

$ pio run -v **************************************************************************************************************************************************************************************************************
Obsolete PIO Core v5.1.0 is used (previous was 5.1.1a3)
Please remove multiple PIO Cores from a system:
https://docs.platformio.org/page/faq.html#multiple-platformio-cores-in-a-system
************************************************************************************************************************************************************************************************************** Processing mayfly (platform: atmelavr; board: mayfly; framework: arduino) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
CONFIGURATION: Redirecting...
PLATFORM: Atmel AVR (3.2.0) > EnviroDIY Mayfly
HARDWARE: ATMEGA1284P 8MHz, 16KB RAM, 127KB Flash
DEBUG: Current (simavr) On-board (simavr)
PACKAGES:

  • framework-arduino-avr 5.1.0
  • toolchain-atmelavr 1.70300.191015 (7.3.0)
    LDF: Library Dependency Finder → Library Dependency Finder (LDF) — PlatformIO latest documentation
    LDF Modes: Finder ~ chain, Compatibility ~ soft
    Found 5 compatible libraries
    Scanning dependencies…
    No dependencies
    Building in release mode
    MethodWrapper([“checkprogsize”], [“.pio\build\mayfly\firmware.elf”])
    Advanced Memory Usage is available via “PlatformIO Home > Project Inspect”
    RAM: [ ] 0.1% (used 9 bytes from 16384 bytes)
    Flash: [ ] 0.4% (used 510 bytes from 130048 bytes)
    .pio\build\mayfly\firmware.elf :

section size addr

.data 0 8388864

.text 510 0

.bss 9 8388864

.comment 17 0

.note.gnu.avr.deviceinfo 64 0

.debug_aranges 64 0

.debug_info 2314 0

.debug_abbrev 1873 0

.debug_line 258 0

.debug_str 662 0

Total 5771
======================================================================================== [SUCCESS] Took 0.64 seconds ========================================================================================